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BS ISO 20427:2023

BS ISO 20427:2023

$142.49

Pigments and extenders. Dispersion procedure for sedimentation-based particle sizing of suspended pigment or extender with liquid sedimentation methods

Published By Publication Date Number of Pages
BSI 2023 30
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PDF Catalog

PDF Pages PDF Title
2 National foreword
6 Foreword
7 1 Scope
2 Normative references
3 Terms and definitions
9 4 Principles of dispersion
4.1 Principles of ultrasonic dispersion
4.2 Principle of wet jet mill dispersion
4.3 Principle of shaker-based dispersion
10 5 Principles of sedimentation-based techniques for particle size analysis
5.1 Stokesian sedimentation analysis
5.2 Disk-type centrifuges
5.3 Cuvette-type centrifuges
5.4 Gravitation-based sedimentation methods
11 5.5 Centrifugal field-flow fractionation method
6 Apparatus
6.1 Apparatus for ultrasonic dispersion
6.2 Apparatus for wet jet milling dispersion
12 6.6 Magnetic stirring device with stirrer bar
6.8 Cooled bath
6.9 Liquid sedimentation-based detection systems for particle size measurement
13 7 Settings for dispersion
7.1 Procedure of ultrasonic dispersion using a probe-type sonicator
14 7.2 Procedure of ultrasonic dispersion using a bath-type sonicator
7.3 Procedure of shaker-based dispersion
15 8 Dispersion procedure
8.1 General
8.2 Sampling for dispersion
8.3 Reagents
16 8.4 Recommendations for sample preparation
9 Sampling
10 Measurement and expression of results
11 Test report
18 Annex A (normative) Protocol for the determination of energy input
21 Annex B (informative) Limits for ultrasonic dispersion procedure
22 Annex C (informative) Procedures for dispersion of TiO2 pigments
23 Annex D (informative) Procedure for dispersion of CaCO3 with wet jet milling
24 Annex E (informative) Procedure for the dispersion of Fe2O3 with an ultrasonic probe
25 Annex F (informative) Procedure for dispersion of carbon black
26 Annex G (informative) General procedure for dispersion of pigment or extender
28 Bibliography

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BS ISO 20427:2023
$142.49